한국신재생에너지학회:학술대회논문집

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Fatigue Analysis of Welded Toe of Wind Turbine Tower Access Door

Wind Turbine Tower의 Door 용접부에 대한 피로 강도 연구

  • 한동영 (㈜효성 중공업연구소 구조진동팀) ;
  • 고장욱 (㈜효성 중공업연구소 구조진동팀) ;
  • 최원호 (㈜효성 중공업연구소 구조진동팀) ;
  • 이승구 (㈜효성 중공업연구소)
  • Published : 2005.06.01
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Abstract

Recently, as the global warming by fossil fuels become social issues. the interest of renewable energy producing system is increasing rapidly. Among these, wind turbines are most highlighted because of its economic competitiveness. The tower occupying about $20\%$ of overall turbine costs, is one of the main components of wind turbine. Tower access door located to base part of the tower, is used to enter the tower. This is the main structural weak point because of door hole, weldment, etc. In this study, by FEM, we retrieved the maximum van Mises stress at door location and carried out fatigue analysis using stresses at weld toe locations of tower access door part.

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